December weather forecast
Waterboro, ME

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Weather in December

The first month of the winter, December, is still a cold month in Waterboro, Maine, with an average temperature ranging between min 23.9°F (-4.5°C) and max 34.7°F (1.5°C).

Temperature

The arrival of December indicates a decrease in the average high-temperature, moving from a chilly 45°F (7.2°C) in November to a wintry 34.7°F (1.5°C). During December, an average low-temperature of 23.9°F (-4.5°C) is observed.

Humidity

The average relative humidity in December is 80%.

Rainfall

In December, the rain falls for 9.5 days. Throughout December, 3.27" (83mm) of precipitation is accumulated. In Waterboro, during the entire year, the rain falls for 142.1 days and collects up to 30.47" (774mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Waterboro, during December, snow falls for 8.3 days and regularly aggregates up to 7.01" (178mm) of snow. Throughout the year, there are 43.9 snowfall days, and 30.79" (782mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 0min of daylight.
On the first day of the month, sunrise is at 6:56 am and sunset at 4:07 pm. On the last day of December, sunrise is at 7:15 am and sunset at 4:16 pm EST.

Sunshine

In December, the average sunshine is 4.9h.

UV index

The months with the lowest UV index in Waterboro are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: A maximum daily UV index of 2 during December morphs into the following directions:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Updated: Jul 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

During December, Waterboro experiences an average high-temperature of 34.7°F (1.5°C) and a low-temperature of 23.9°F (-4.5°C).

What is the average humidity in December?

The average relative humidity in December is 80%.

How much does it rain in December?

In Waterboro, Maine, during December, the rain falls for 9.5 days and regularly aggregates up to 3.27" (83mm) of precipitation.

How many days does it snow in December?

In Waterboro, during December, snow falls for 8.3 days and regularly aggregates up to 7.01" (178mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 0min of daylight.

What is the average length of the day in December?

In December, the average day length is 9h and 1min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 6:56 am and sunset at 4:07 pm. On the last day of the month, in Waterboro, sunrise is at 7:15 am and sunset at 4:16 pm EST.

How long on average sun shines in December?

In Waterboro, the average sunshine duration in December is 4.9h.

When is the lowest UV index?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

How high is the UV index in December?

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Waterboro, ME

Average temperature in December - Waterboro, ME
  • Average high temperature in December: 34.7°F

The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in December: 23.9°F

The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (16°F).

Average pressure in December
Waterboro, ME

Average pressure in December - Waterboro, ME
  • Average pressure in December: 30.02"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in December
Waterboro, ME

Average wind speed in December - Waterboro, ME
  • Average wind speed in December: 7.9mph

The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.4mph).

Average humidity in December
Waterboro, ME

Average humidity in December - Waterboro, ME
  • Average humidity in December: 80%

The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is November (76%).

Average rainfall in December
Waterboro, ME

Average rainfall in December - Waterboro, ME
  • Average rainfall in December: 3.27"

The wettest month (with the highest rainfall) is October (3.35").
The driest month (with the least rainfall) is September (1.5").

Average rainfall days in December
Waterboro, ME

Average rainfall days in December - Waterboro, ME
  • Average rainfall days in December: 9.5 days

The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is February (6.6 days).

Average snowfall in December
Waterboro, ME

Average snowfall in December - Waterboro, ME
  • Average snowfall in December: 7.01"

The month with the highest snowfall is February (7.2").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Waterboro, ME

Average snowfall days in December - Waterboro, ME
  • Average snowfall days in December: 8.3 days

The month with the highest number of snowfall days is February (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Waterboro, ME

Average daylight in December / Average sunshine in December - Waterboro, ME
  • Average daylight in December: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in December
Waterboro, ME

Average sunshine days in December - Waterboro, ME
  • Average sunshine days in December: 15.3 days

The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is April (13.3 days).

Average UV index in December
Waterboro, ME

Average UV index in December - Waterboro, ME
  • Average UV index in December: 2

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in December
Waterboro, ME

Average cloud cover in December - Waterboro, ME
  • Average cloud cover in December: 48

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in December
Waterboro, ME

Average visibility in December - Waterboro, ME
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, October, November and December (6mi).
The months with the lowest visibility are May, June, July, August and September (5mi).

Waterboro, Maine, USA

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